Adjustable bracket for lamps



June 5, 1928.

WITNES SES Zzk /a yag Filed Jan. 19, 1927 ma R nn--nunnn-n\' INVENTOR ATTORNEY Patented June 5, 1928.

UNITED STATES PATENT OFFICE.

ARTHUR JAMES TIZLEY, OF BROOKLYN, NEW YORK, ASSIGNOB T0 EDWARD F. CALDWELL & 00., INC, 01'! NEW YORK, N. Y.,A CORPORATION OF NEW YORK.

- ADJUSTABLE BRACKET FOR LAMPS.

Application filed January 19, 1927. Serial No. 162,166.

My invention has for its object to provide an adjustable bracket which may be used for lamps and other purposes, the bracket being cheap to construct, artistic in appearance, and so constructed that it will permit of the convenient replacement of the bracket armand lamp when desired. The bracket arm which may be replaced when desired is heldin an adjustableposition on I a standard by cylindrical members to which it is detachably secured and which enclose the mechanism for holding the bracket arm and cylindrical members in adjusted position on the standard.

Additional objects of the invention will appear in the following specification in which the preferred form of construction of the invention is disclosed.

In the drawings similar reference characters refer to similar parts in all the figures, in which Figure 1 is an elevation showing my invention;

Fig. 2 is an enlarged sectional view on the line 2-2 of Fig. 1;

Fig. 3 is a sectional view similar to that shown in Fig. 2 showing the parts in position when the bracket is moved upwardly on the standard; and

Fig. 4 is another sectional view similar to that shown in Fig. 2 but illustrating the parts in the position which they will assume when the bracket'isbeing adjusted downwardly on the standard.

By referring to the drawings it will be seen that on the standard 5 there is disposed a collar 6 to which is secured a woven metal tubular member 7 to the upper end of which there may be secured a band 8 which fits snugly the standard 5. Mounted on the collar 6 and enclosing the woven metal tubular member 7 there is a coil spring 9 and enclosing the coil spring 9 and the woven metal tubular member 7 there are cylindrical members 10 and 11. The upper cylindrical member 10 has an outer head 12 with which the upper end of the coil spring 9 engages. The lower cylindrical member 11 has a head 13 on which the collar 6 normal- 1y rests. The inner or lower end of the upper cylindrical member 10 has threads 14 and the inner or upper end of the lower standard 5.

cylindrical member 11 has threads 15 with yvzhich meshes the threads 16 on the bracket The bracket 17 has a collar 18 in which the lamp arm 19 issecured by any suitable means.

The woven metal tubular member 7 fits snugly the standard 5 and serves to support the cylindrical members 10 and 11 and the bracket 17 in adjusted position on the standard 5. When it is'desired to raise the cylindrical members 10 and 11 with the bracket 17 this may be done by moving upwardly the cylindrical members 10 and 11 and the bracket 17, for with this upward movement the woven metal tubular member 7 will be slightly compressed which will increase the diameter of the woven metal tubular memher 7 and reduce the friction between the woven metal tubular member 7 and the The band 8 will assist in this inasmuch as the said band 8 fits closely the standard 5 and serves to retard the upward movement of the woven metal tubular member 7, thereby compressing the woven metal tubular member 7 and extending its diameter but this band 8 does not lit the standard 5 closely enough to interfere with this upward movement.

When it is desired to lower the bracket 17 on the standard 5 the cylindrical members 10 and 11 with the bracket 17 are pressed downwardl which will move the head 12 on the cylindrical member 10 against the band 8 and serve to compress the woven metal tubular member 7 which will free the woven metal tubular member 7 sufficiently from the standard 5 to permit of the downward movement of the bracket 17 on the standard.

I claim In an adjustable bracket, a standard, a woven metal tubular member mounted on the standard, a collar on the standard secured to the lower end of the woven metal tubular member, a coil spring disposed around the woven metal tubular member and resting on the collar, two cylindrical members disposed one above the other enclosing the spring and having heads at their outer ends, the upper end of the spring enmember with the upper end of the woven metal tubular member normally spaced from the head on the said upper cylindrical member, the head on the lower cylindrical mem- 5 her bein disposed under the collar for engaging fiie latter, the cylindrical members having threads at their inner ends, and a ARTHUR JAMES TIZLEY. 

